HELP WITH ERROR CODE P04446 on 2002 Chevy Impala 3.4L
#11
did you blow thru the hose to the cannister? if you can't; then it full of dirt that got past the fresh air filter on the vent solenoid...so you would need both parts . the filter protects the cannister. if you drive in dusty conditions....the filter should be replaced periodically. Some farmers have to replace their truck filters once a year.
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chevygirl47
Silverado, Sierra & Fullsize Pick-ups
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May 10th, 2012 7:50 PM